Heater



J. R. sANDAGE HEATER Filed July 25, 192s June 15 1926. 1,588,812

Patented June 15, 1926. p

UNITED vSTATES JACOB n. SANDGE, oreHIcAGo, ILLINOIS.

HEATER.

Application filed July a5, 1925. serial m. 46,062.

This invention relates to heaters for use in houses, to heat the rooms thereof, and more especially those which areV of a portable natu-re, such as oil and gas heaters, and electricheaters, which not only heat the immediately surrounding atmosphere, by radiation, but which also take in pure air and discharge it in heated condition as the result of the admixture therewith of the air heated inside `of the heater, by immediate contact with the heating element, as well as by admixture therewith of any products of combustion, if the heater be of the kind, for example,`that employs a gas or oil flame, whereby the volume of air is taken in at the bottom of the heater and is discharged in heated condition from thetop or upper porti-on thereof.

Generally stated, the object of the invention is to provide a novel andimproved construction of heater 'of the foregoing general character, having' certain improvements in features of construction tending to increase 'the efficiency thereof, with a view to obtaining a greater heating capacity,'for any given amount-of fuel or electric current consumed in the operation of the heater. It is,` also an object to provide certain details and features 4of construction tending to increase the general efficiency and the desirability of an air circulating heater of this particular character.

To these and other useful ends, the invention consists in the matters hereinafter set forth and claimed, and shown inthe accompanying drawings, in `wh1ch,

Fim 1 is a vertical section of an air circulating heater embodying the principles of prises a base 1 having a baffle plate 2. at

the bottom thereof, spaceda distance from the Hoor by the legs 3 which support the base. The top of the base is provided with a central opening 4. to receive the lower end of the downwardly tapered air flue 5, and having a plurality of openings 6 arranged extends inwardly to engage the upper end portion of the fine 5, as shown. Below the top 7, the said flue is provided with a plurality of openings 8, so that air passing upwardly through the openings 6,.and through the space between the flue 5 and the drum 7, will enter the flue through the openings 8, as shown. The exposed upper end por tion of the flue is provided with a plurality of larger openings 9, as shown, through which the heated air and products'of com? b'ustion from the space 10 between the flue and the drum will escape into the atmosphere. It will also be seen that, with this construction, air passing upwardly around the edge of the bafl'le plateY 2, as shown in Fig. 1, will enter the lower end of the flue 5 and pass upwardly and mingle with the air and products of combustion which enter through the openings 8, whereby a supply lof pure and untainted air is taken upwardly through the heater, through the said downwardly tapered flue thereof, and is mixed with the air and products of combustion taken into the flue from the space or chamber 10, whereby a wholesome quantity of practically pure air in a highly heated condition is constantly discharged from the openings 9 into the atmosphere. y

Any suitable means can be employed as' the heating element. For example, as shown'k in Figs. 1 and 2, an ordinary gas burner 11 can be provided in the form ofl a ring encircling the flue,fand provided with a valve 12 to. control the flow of gas, whereby a gas flame of the required-character will be produced in the chamber or space 10 to heat the air therein, by admixture with the gases or products of combustion, and by direct radiation from the flame, whereby the walls of the flue 5 will be heated to heat the air passing upwardly through the flue from the lower end thereof.

Of course, if desired,` the electric heating element 18, in the form of a resistance coil of any suitable character, can be applied to the outer surface of the fiue 5, and connected in circuit with a suitable source of current, thereby to electrically heat the air passing up through the heater.

It is also obvious that an oil heater (not shown) of any suitable character can be substituted for the gas heater shown and;V described, or that any other form of heating element can be employed substantially in the position and in the relative arrangement shown and described, without departing from the spirit of the invent-ion.

lt will be seen that by tapering the Hue 5 downwardly, its sides overhang the burner 1l, so that the Hame of the latter will be directed upwardly against the outwardly inclined outer surface of the Hue, thus elliciently heating the latter. The heating element, of course, as stated, can be arranged in any suitable or desired manner, but is preferably applied, regardless of the/arrangement thereof, to the lower portion of Y- the Hue, so that the air entering the lower end of the Hue will be heated almost immediately, whereby air entering the lower end of the space outside of the Hue will also be heated almost immediately upon entering at the base of the heater.

Thus lthe top plate 14 of the heater is im perforate, and with this arrangement the heater has" means for mixing and then laterally discharging the air and heated gases, immediately top of the space 10, so that all of the air enterinv the bottom of the heater is necessarily discharged laterally from the top of the heater, and from the space4 immediately below the said top plate.

Without disclaiming anything, and with- `out prejudice to any novelty shown and described, what I claim as my invention is:

1. In a heater for receiving air at the bottomthereof,.and for heating the air therein, and for then discharging the heated air from the top thereof, the combination of a body formingouter sidewalls for the heater, an open bottom Hue extending upward therein, an imperforate top plate for the heater, with space between the outside of said Hue and the inside of said body, the heater having means at the base the lower end of said Hue, and also to the botbelow said plate, and above the thereof to admit air to 1 tom of said space, the Hue having openings posed above the top of said space and below said top plate for commingling and for laterally discharging all ofthe air which enters the heater at the bottom thereof, and which passes upward both inside and outside of said Hue, in combination with a heatingv element applied to the lower portion of said Hue, in position to heat some air directly and some indirectly through the wall of the Hue.

2. A structure as specified in claim 1, said heating element surrounding the outer surface of said Hue, whereby air passingupwardly in said space is heatedl by direct contact with said heating element, and whereby pureair is heated in the Hue and then mixed with'the air entering the upper portion of the Hue from said space.

3. A structure as specified in claim 1, in combination with a baille plate immediately below the lower end of said Hue, spaced a distance therefrom, substantially as shown and described.

4. A structure as specified in cla-im 1, said Hue being tapered downwardly and having said heating element applied to the outer surface thereof, near its lower end, thereby to heat the air in the mannerstated.

5. A structure as specified in claim 1, said Hue having an outwardly inclined side wall, so that the Hue overhangs said heating element, the heating element being outside of said Hue and disposed in position to apply the heat to the outer surface of said outwardly inclined wall of the Hue, and the outer wall of the body being vertically disposed, so that said space vtapers gradually upward.

Specification signed this 15th day of July, 925.

JACOB R. SAN DAGE. 

